TonneMiles

Other ship types (Offshore) · Norway flag · built 2007

BOKA TOPAZ: CO₂ emissions 2025

IMO 9382815 EU ETS

CO₂ reported 2025
3,632 t
Fuel burned
1,133 t
Time at sea
2,126 h
Emitted at berth
4% of total
Share of year under way
24%
Gross tonnage
8,009
BOKA TOPAZ
Alan Jamieson from Aberdeen, Scotland, CC BY 2.0 · File

BOKA TOPAZ against its type

Built in 2007, it is 4 years older than the median offshore vessel on this register, which was built in 2011 (410 vessels with a known build year). At 8,009 gross tonnage it is larger than 79% of the other 396 offshore vessels with a recorded tonnage. It is one of 70 offshore vessels here under the Norway flag, 16.9% of the 413 on the register. The same builder is recorded for 20 other vessels here, one of them an offshore vessel.

Its 3,632 t of CO₂ for 2025 is 10% below the median of 4,049 t among the 390 offshore vessels on this register that reported for 2025. Per nautical mile it emitted 912.5 kg CO₂, 2.6 times the type median of 348.3 kg. It logged 2,126 hours at sea against a median of 3,550 hours for its type that year. 4.1% of its 2025 emissions were at berth; the median for offshore vessels was 6.4%. The one sister ship listed below with a 2025 return reported a lower CO₂ per nautical mile.

Emissions by year2025–2025

Year CO₂ (t) Fuel (t) Distance (nm) At sea (h) At berth (t) kg CO₂/nm EEOI Percentile
2025 3,632 1,133 — 2,126 148 912.5 — —

Vessel particulars

IMO number
9382815
Call sign
LARH7
Ship type
Other ship types (Offshore)
Gross tonnage
8,009
Length overall
105.0 m
Beam
22.0 m
Year built
2007
Flag state
Norway per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Panama. The flag shown is from the newest official source, the EU MRV return for 2025.
Builder
Fosen Yard
Port of registry
Fosnavåg MRV 2025
Verifier
DNV, Germany
Accreditation
VS-16026-01
Compliance document issued
2026-04-22
Compliance document expires
2027-06-30

Where the 2025 emissions occurred

At berthAt berth: 148 t148Within EEA portsWithin EEA ports: 148 t148Voyages between EEA portsVoyages between EEA ports: 2,385 t2,385Voyages to an EEA portVoyages to an EEA port: 589 t589Voyages from an EEA portVoyages from an EEA port: 511 t511

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent
3,687 t
Methane (CH₄)
0.06 t
Nitrous oxide (N₂O)
0.20 t
Under EU ETS
3,082 t, 85% of total

Sources and how to read this

This page draws on 1 MRV reporting year, 5 of 5 vessel particulars and a licensed photograph. Not found in the sources for this vessel: an efficiency ranking, AIS movements in Norwegian waters, a name history, a sanctions listing and US port state inspections.

Empty means unreported, never zero. How EEOI, distance, percentiles and sister ships are handled is explained under reading a vessel page. Something wrong? See corrections.

Comparable vesselssister ships and nearest by tonnage